Well-drilling machine.



A, H. HERDMAN.

WELL DRILLING MACHINE.

APPLICATION FILED 00118, I917.

L fifi wfi'. Patented Feb. 5,1918.

2 SHEETS-SHEET 1.

A. H. HERDMAN.

WELL DRILLING MACHINE.

APPLICATION FILED OCT-18,1917.

Patented. Feb. 5, 1918.

2 SHEETS-SHEET 2.

ADAM H. HERJDIVIAN, E FORT WORTH, TEXAS, ASSIGNOR TO FORT WORTH WEL 4aMACHINERY dz. SUPPLY 00., 013 FORT WQRTH, TEXAS, CDBPOEATIUN 0T5WELL-DRILLING MACHINE.

' citizen of the United States of America, re

siding at Fort Worth, in the county of Tar rant and State of Texas, haveinvented certain new and useful Improvements in Well- Drilling Machines,of which the following is a specification.

My invention relates to well drilling machines and more particularly toimprovements for simplifying the driving mechanism, and the object is toreduce the number of shafts and other parts of well drilling machinesand to provide means by which the principal functions of the machine mayall be accomplished from one main driving shaft and to provide means forpositioning the main or bull wheel of the machine for accomplishing thedifierent functions of the machine.

Other objects and advantages will be fully explained in the followingdescription and the invention will be more particularly pointed out inthe claims.

' Reference is had to the accompanying drawings which form a part ofthis application.

Figure l is a perspective view of the machine. Fig. 2 is a plan viewwith some parts omitted and other parts shown in section for clearnessof illustration. Fig. 3 is an end elevation of the machine, certainparts being broken for clearness in illustration. Fig. 4 is a detailview of the diderent clutches for engaging the bull wheel.

Similar characters of reference are used to indicate the same partsthroughout the several views.

The drawings show a machine complete and all mechanism for driving themachine mounted on a single truck. The machine has a frame composed ofbeams 1 and 2 and end beams 3 and '5. all carried on a wheeled truck4for transportation of the machine and for supporting the machine. Themachineis provided with a motor 6 for driving all the operatingmechanism. The machine is provided with a main driving shaft 7 and themain drive or bull wheel 8 is mounted loosely on the shaft 7 and isslidable or axially movable on the shaft7. The wheel 8 is driven by apulley 9 on the shaft of the motor 6 by means of a belt 10. There arethree positions Specification of Letters Fatent.

Application filed October 18, 1917.

Patented Feb. 5, ll llrhle Serial No. waste. I

for the bull wheel. In the neutral position the wheel 8 runs loosely onthe shaft 7 for driving a pulley, 11 which operates the sand line bydriving the spool 12. The pulley 11 is driven by friction against thewheel 8 and is moved into and out of contact withothe wheel by a crank18 and a lever 14.- and link bar 15. The spool 12 operates the sand linewhen thus geared to the bull wheel in the neutral position.

a The wheel 8 has a beveled clutch member 16 rigid with one side and astraight clutch member 17 rigid with the other side. operating the toolline a spool 18 is loosely mounted on the shaft 7 and provided with aclutch member 19 which is rigid therewith. The spool 18 is provided witha brake 20 and a brake lever 21. The hull wheel 8 is shifted intooperative relation with the spool 18 by means of a yoke 22 and a lever23 which is fulcrumed on the frame member 2 and pivotally connected to alink bar 24: which is pivotally connected to the yoke 22. The bull wheel8 can thus be thrown into and out of operative relation with the spool18 for drawing the tools out of the well. The spool 18 is provided withworm gearing for paying 0d" the tool line, consisting of a gear wheel 25(which serves as part of the spool) and a pinion 25.

For operating the spudding beams 27, the bull wheel 8 is shifted bymeans of the lever 23 to bring clutch. member 17 into mesh.

with the clutch member 28 which is keyed rigidly on shaft 7. Cranks 29are rigid with shaft 7 and are pivotally connected to pitman rods 30which are pivotally connected to the spudding beams 27. The shaft 7 isdriven only when operating the spudding beams for drilling purposes.

It will be observed that there are three positions for the bull wheel 8and this bull wheel is shifted to any one of these desired by the lever23. The wheel 8 is shifted to neutral position for operating the sandline, shifted into mesh with clutch member 19 for operating the toolline, and shifted into mesh with clutch member 28 for operating thespudding beams for drilling purposes. The other parts of the drillingmechanism need not be described since they are not parts of myinvention. Various changes in the sizes, proportions, and arrangement,and

-l or construction of the parts or elements above described may be madeWithout departing from my invention.

' What I claim is,-

1. In a-well drilling machine provided with a wheeled truck, a shaftjournal ed on said truck,'a bull wheel loosely mounted on said shaft, amotor mounted on said truck and provided with a pulley and a belt fordriving said bull wheel, and means for positioning said bull wheel foroperating the sand line, or the tool line, or the spudding beam of themachine at will.

2. In a well drilling machine provided with a frame and a wheeled trucktherefor, said machine being provided with the usual sand line, toolline, and spudding beams, a shaft journaled on said frame, a bull wheelmounted loosely on said shaft, means for driving said bull wheel, andmeans for positionin said bull Wheel for operating said sanld lme, ortool lines, or spudding beams at wil 3. In a well drilling machineprovided with a frame and a wheeled truck therefor, said machine beingprovided with the usual sand line, tool line, and spudding beams, ashaftjournaled on said frame, a bull wheel mounted loosely on saidshaft, means for driving said bull wheel, and a lever ful-- with a frameand a wheeled trucktherefor,

said machine being provided with the usual sand line, tool line, andspudding beams, a shaft journaled on said frame, a bull wheel mountedloosely on said shaft, means for driving said bull wheel, said bullwheel being provided with clutch members, one on each side thereof, aspool for operating the tool line loosely mounted on said shaft andprovided with a clutch member adapted to be engaged by the clutch onsaid bull wheel, a clutch rigidly attached to said shaft 011 theopposite side of said wheel from said spool, and a lever fulcrumed onsaid frame for shifting said wheel axially on said shaft to engage saidspool clutch to operate the tool line, for shifting said wheel to engagesaid fixed clutch to operate the spudding beams, or for shifting saidwheel to neutral position for operating the sand line.

In testimony whereof, I set my hand, this 12th day of October, 1917.

ADAM H. HERDMAN.

